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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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People about to have surgery must tell their health care providers about all supplements they take.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Illicit drug use costs the United States approximately $181 billion every year.
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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.